diff -r 754fa90c8b27 -r df59be5afb08 editors/Viewer.py
--- a/editors/Viewer.py	Sun Jan 18 19:41:27 2015 +0100
+++ b/editors/Viewer.py	Sun Jan 18 20:38:34 2015 +0100
@@ -1114,7 +1114,7 @@
         self.ElementRefreshList.append(element)
         self.ElementRefreshList_lock.release()
 
-    def NewDataAvailable(self, ticks, *args, **kwargs):
+    def NewDataAvailable(self, ticks):
         if self.IsShown():
             refresh_rect = None
             self.ElementRefreshList_lock.acquire()